6166566207648 has 1800 divisors, whose sum is σ = 24536036669760. Its totient is φ = 1513884556800.

The previous prime is 6166566207643. The next prime is 6166566207661. The reversal of 6166566207648 is 8467026656616.

6166566207648 is a `hidden beast` number, since 6 + 1 + 6 + 6 + 566 + 2 + 0 + 7 + 64 + 8 = 666.

It is a Harshad number since it is a multiple of its sum of digits (63).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6166566207643) by changing a digit.

It is a polite number, since it can be written in 299 ways as a sum of consecutive naturals, for example, 14307577993 + ... + 14307578423.

Almost surely, 2^{6166566207648} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 6166566207648, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (12268018334880).

6166566207648 is an abundant number, since it is smaller than the sum of its proper divisors (18369470462112).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

6166566207648 is a wasteful number, since it uses less digits than its factorization.

6166566207648 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 522 (or 473 counting only the distinct ones).

The product of its (nonzero) digits is 104509440, while the sum is 63.

The spelling of 6166566207648 in words is "six trillion, one hundred sixty-six billion, five hundred sixty-six million, two hundred seven thousand, six hundred forty-eight".